So there we sat on the pool deck drinking margaritas and talking while the k**s played in the pool. I made it a point to laugh at all his jokes and I...touched his arm or shoulder whenever I could. For his part Chris made sexual innuendos whenever he could and continually told me how beautiful I was. Man I was getting hot with all this flirting. At one point I laid on the lounge chair face down and undid my top. I also pulled my bottoms together to form a type of thong. As I lay there I. “Please fuck me!” She begged, “which hole do you want fucking” I asked “Fuck my cunt then fuck my arse” She was almost ordering so of course I duly obliged sliding my hard cock deep into her wet cunt, I thrust back and forth my balls slapping the back of her thighs, she started moaning louder and louder almost screaming at some point, I pushed my cock in as far as I can and grind away inside her cunt, as I do I finger fuck her anus, I can feel my erection through the thin sensitive anal wall. "Again she rejected. I kept nagging her about on the way home but dropped it as soon as we went to bed. I had other things on my mind then.The next day I again approached her about my birthday "present"."Is that all you can think of? As a present?" Yes." You really are a pig, but what the heck. OK."The rest of the week I just couldn't think of anything else and I eagerly awaited the upcoming Friday. And it finally came. Linda wanted to be on her own while she got dressed and I waited. -Is it that time of your month?I could not reply a single word. I was so silent. Something happened to me. He was already tensed seeing my condition. After a long pause I told him “yes”. He didn’t act anything awkward as he knew I am already not comfortable. He then said me to have some water and lie side wise. It relieves some pain. I was getting to go well with his behavior and he was really nice. We both were new to this kind of amused feelings. Days passed and we started talking about that.