She continued slowly massaging my rock hard cock while pressing a sensitive point just under my balls close to my arsehole. My anal muscles were alrea...y twitching when she entered me with two fingers. This was new to me, but it felt good. I am 100% hetero, with no inclination to gay anal sex whatsoever, but the combination of her stroking my cock and fingering my anus was giving me a terrific new sensation. She stopped, and I was afraid my sample was over, but then came the big surprise: she. She sat back on her heels and grinned, using a finger to wipe the corners of her mouth. “Wow!” I said.“That was fun. We’re going to have to do that again.”“Any time you want.” I theatrically looked at my watch. “Give me a few minutes...”Shelley laughed and stood up, grabbing her top and bra. “Not now. My folks will be home in ten minutes. I need to get dressed!” She scampered up the stairs.I waited another minute to catch my breath, and then stood up and pulled my briefs and pants back up. By. That was the first time that I looked at Derek in a sexual way, his slim build, rock hard abs and little patch of trimmed pubic hair. At 12 I still didn't have any and I had a pretty feeble penis, at about 4" fully erect it was tiny in comparison to Derek's ever growing cock. Without speaking he reached out and touched the head of my dick, I was surprised at this but not worried. He was now fully erect, his full 7" almost touching my thigh; without thinking I automatically grabbed hold of it. I press the up button and count the seconds as the slow elevator returns to the ground floor.The door opens and I have to again control myself not to jump into it. I waited for three passengers I had never seen before, disembark the elevator before I alone get in to ascend.My heart pounds as I feel each foot of the elevator climb to the sixth floor before it slowed and then stopped. My cock lurches in anticipation, NOT for the first time, as the doors opened.I walk out and notice the sign.