Your reply is as quick and eager as it could be. Smiling with an excited blush, you say:

"Well, this a surprise, but a welcome one. I sincerely didn't expect we would be doing this so soon, but I'm not one to complain. Dear, am all in!"

Adamá giggles, finding your reaction, and replies both cute as well as to her liking. She says:
"Lovely, I was just hoping you were as eager as I am right now. Now, take off those clothes, while turning around; I want to hear your opinion of how I look naked."

You nod in agreement, and so, both of you turn your backs to each other, whilst taking off your clothing as quickly as possible. In a few moments later, you hear Adamá's voice, saying:

"Ready?"

"Yes, dear", you reply, having just taken off your underwear. 

You turn around, and the sight is gorgeous: the woman's curvy body is now laid bare, her large breasts with extremely dark-skinned nipples being like sexy mountains, complementing extremely well with her thick thighs and large ass. In simpler words, she had the looks of an African fertility "goddess", one that you were going to please soon enough.

She raises her arms to the back of her head into quite a sexy position, while asking:

"Like what you see, my tiny lover? Are you eager to start your "journey" to get to know this mother's body intimately?"

"As eager as any man confronted with such a lovely woman, Adamá: goodness, you're gorgeous!"

Adamá giggled again before she gently grabbed you and started crawling across the bed, using her other hand to take out your clothes before leaving them in a safe place. Once this was done, she turned whole, now laying fully on her back. She then raises you to her face, whilst saying:

"Now, normally, I would need or at the very least, appreciate some foreplay with my nipples..."

She then moans a bit, turning your attention to her chest area, where you can see she uses her free hand to toy with one of her nipples. This side-show is quickly over, as your giant lover then moves through the air lower across the extent of her beautiful body. And when she stops you right above her extended legs, with her cunt fully exposed for you to see, you hear her teasing voice again, concluding: 

"But, as you can see "babe"...I'm already pretty wet down in my intimate tunnel...oh, like what you see, babe? Wanna get inside "momma"? Wanna...make her happy?"

As she does this, she starts to play with her pussy lips, opening and closing them in a constant slow motion, as if teasing you with the very prospect of getting inside her love tunnel, pulsating and dripping with her love fluids in ever faster waves.

You blush at the sight, for it is everything you had dreamed of in your fantasies about having sex with a gorgeous giantess. You reply:

"Yes, I do. I want to make you happy. I want to make me worthy of your love, my dear."

"Then...come inside... let's begin..." your giant lover replies before she brings you gently and steadily to her cunt, where with a couple of her fingers she pushes you inside. She makes a low moan, enjoying the feeling of pushing you deep inside her vagina.

Her fingers go as far as they can, before pulling back and leaving on your own, inside your giantess love tunnel, where you take a few quick seconds to think about what to do before devising a plan and starting to work. You move and struggle back and forwards, whilst using your hands and tongue to caress and massage the quaking walls of flesh that surround you. To your greatest joy and pride, the effects are immediate, as the loud heartbeats of your gigantic lover start to get faster, while muffled sounds of moaning can be heard from outside. The sweet voice of Adamá is the final confirmation, as she congratulates your efforts by saying:

"Oh yes...yes...go on, babe...keep going...hmm, I love to have...such a diligent and proactive lover! Don't stop...make momma feel good...make her...happy...ohh...."

This only incentivizes you to try to reach further heights of pleasure for your beloved, making her moan louder and louder. At the same time, you start to move your hips up and down, rubbing your cock against the walls. 

"Yeah, I can feel that...keep going babe, fuck momma...fuck her good...my tiny lover...move those hips...oh!" your lover exclaims again, giggling as she enjoys your movements inside her. 

As both of you get closer to the peak of pleasure, you have a harder time keeping focus on your efforts to make Adamá feel good; yet, the beginning tone of her voice as she exclaims even louder:

"Babe...babe...get ready...get ready...momma is nearly there...nearly...ready...to...to...!"

Is what inspires you to make the last ditch effort, and one you're successful at.

The loudest and longest series of moans soon follow, while the walls of flesh compress you from all sides, and her vaginal fluids cover you in a torrent that pushes you further out from her depths. At the same time, your hips buck, and you shoot out your seed inside her.

Then, the walls pull back, and the torrent of love juices, so mighty a second before quickly loses potency, in a similar manner as to how a river calms its flow after breaking a dam that stood on its path. At the same time, the heartbeats of your giant lover mellow down, both in speed as well as in loudness. You start to gasp, recovering from the incredibly pleasant yet exhausting endeavor; you had never ended up this exhausted after having sex with a woman before.

Yet you're not the only one that's tired after this wholesome experience; the gasp Adamá is making, even though muffled, can be heard from your current position inside her vagina. You then hear her laughing proudly a bit, before she speaks, saying:

"Fuck...mmm, I had forgotten how amazing it felt to have a tiny man squirming, struggling, and licking inside my pussy....way better than just playing by myself."

Another few seconds pass, as both of you recover your energies. Then, the entry to the dark, moist, and warm tunnel opens to the light once more, as two massive fingers search for their quarry, before gently grabbing you and pulling you into the outside world. You slowly and calmly move through the air above a gorgeous "landscape", before getting into an intimate kiss with the largest lips you have ever got in touch with. Adamá pulls you back, brimming with happiness. She speaks again, saying:

"Good job, Paul that was excellent; my first time with Malik was not close to being this good. Hehe, are you sure this is the first time you've fucked a giantess?"

"Well, yeah, it is...but I had a...hobby back in my original home that...gave me quite some inspiration for this," you reply, blushing a bit as you recall in your mind what exactly inspired you to act the way you did inside her: never thought that those "games" would prove useful in real-life.

Adamá giggles, before speaking again, in a teasing tone:

"Really? Hmm, I wonder what hobby are you referring to, eh? Do you want me to take a guess, honey?"

Before you can reply, she kisses you again, before she speaks in a more calmed tone:

"Thanks...I...really needed something like this. And I...appreciate that you were so eager to join me in bed, and even immediately got into the whole "momma and babe" stuff...back with Malik, even though we had fun, he always conducted himself with such...regality and dignity, that such kind of roleplay...I'm sure he wouldn't have enjoyed it."

"Well, everyone is different, and more so in this case: you told me he was royalty back in his original homeland, so if he preferred a more regal and sober interaction with his wife could be expected. As for me, I'm more than happy to be your "babe" or whatever you want to call me whilst we are at it: I enjoy for a gorgeous woman such as yourself to enjoy herself to the fullest." you reply, while caressing her cheek with one of your hands, as now she left you close enough to her face to do it.

Adamá sighs, appreciating your understanding, before she once again kisses you. 

Another moment passes before your giantess asks you a very important question:

"Well, now, this was fun, and I'm in the mood for some more: do you want to give me a second round? And if so, how exactly? I am already imagining several ways we could "spice things up".

That sounds awesome, but...would you be eager? Are you as well in the mood for a second round having sex with Adamá? On the contrary, perhaps you're too exhausted, or something else happens before you can decide.