Anna's Pov:

After some time of their swimming, Alex feels thirsty, and he comes near to my side and asked me for water...

And Mark helped him to sit on the slab of the swimming pool, and I went near to them with a water bottle and helping him to drink water, and I offered Mark some water and he drinks some, and they again continued there swimming, and I settled on the slab by keeping my legs in the swimming pool and looking at them while they are busy in enjoying their swimming...

But suddenly, Mark takes away the air pad of Alex, and he dipped in the water suddenly...

I am nervous and worried by looking at him, but I know Alex is safe because Mark is around him, and in a few seconds, he started floating on the water on his own without the help of air pad...

I am really wondered by looking at him and his speed learning skills...

Alex is screaming in happiness that he is floating on the water on his own without the help of an airbag...

But suddenly I can sense something is gripped my foot in the water, and I looked at what it might be; meanwhile, it pushed me down, and I tried to grip the slab, but it's all watery, so my grip was loosened, and I fall into the swimming pool in the next second...

And I swallowed a mouth full of swimming pool water, and in the next second I am floating, and in the next second I realized someone holds my waist from my back, and it's Mark...

Mark: let's begin our first lesson, Anna...

Anna: Mark, I am not prepared...

(I am shouting at him because I didn't hold any grip, and if he leaves my waist, I may fall in the water, so I placed my hands on his hands on my waist immediately for the grip...)

Anna: Mark...

Please don't leave me...

Mark: hold the breath, Anna...

Anna: Noo, No..

Mark, please...

Mark: I will leave you just one second in the water, and you should hold your breath and close your mouth...

Ok?

Anna: no...

No...

Not now...

Mark: 3...

Anna: Mark...

Please listen to me...

Mark: 2...

(He doesn't listen to me so I closed my eyes and take my breath and closed my mouth and hold his hand more tightly and I didn't hear the no. 1 but he leaves my waist and hold my hand in return and I sensed that I am under the water and I can hear the silence of water for a few seconds and Mark immediately hold my waist and make me above the water...

I cough a little, and after a few seconds, my breath was normal...

Mark: Ready?

I nodded my head as yes and again hold my breath and closed my mouth and eyes tightly...

He repeated the same thing for 12 to 15 times, and after he holds me tightly for a few more minutes to make my breath get normal...

In the last 2-3 dips, I tried to open my eyes to look under the water for just one second and it's really beautiful…

In between my thoughts, Mark hugged me from my back more tightly, and now I can clearly sense his Hard erected Dick on my butt, and he is rubbing on me...

I acted normal and pretended I didn't notice it...

Mark: Good job, Anna...

And now you should practice to hold the breath underwater as long as you can...

(I didn't say anything and nod my head as yes...)

Mark: hold your legs...

Fold your knees to your tummy and lock them with your hands...

I am scared to leave his hands, but I am sure he doesn't leave my waist, so I take my strength again, and now I am just following Mark's instructions and folded my knees towards my tummy in the water...

Mark gripped me tightly on my waist...

Mark: take the breath...

Fill your tummy with air...

Come on...

3... 2... 1...

I closed my eyes, hold my breath and locked my legs with my hands towards tummy and take a dip in the water and enjoying the silence of water...

And I raised my head when I feel suffocated, and Mark hugged me tightly...

Mark: you hold 45 seconds, Anna...

That's really great in your first class...

I really feel very proud when he is pricing me...

But his hug is not usual this time, he is squeezing my wet body towards him and I wrapped my hands around his neck and letting him to enjoy me...

Mark: did you remember our kiss in the swimming pool?

(By finishing his words, he leaned his head on my neck and his hand is again crawling near to my bra strap under the top and I know he will definitely unhook it, and he did it in just a fraction of seconds and hugged me more tightly...

His other hand is moving down to my waist and crawling to my butt, and now it's really embarrassing me...

And his breathing is raising for his intense actions on my neck...)

Mark: Anna...

You are making me horny all the time, and it's very tough to control...

(By finishing his words, he squeezed my butt very intensely, and his dick is pressing near to my pussy, and I feel some pleasure sensation near my lower tummy and I feel thirsty...)

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