I was enjoying sucking so much, that when he erupted in my mouth I was surprised. I just swallowed and kept sucking.After he was done cumming, he push...d me away. I thought I had done something wrong so immediately apologized. He said that it was ok and that his dick was too sensitive. He told me that my sucking felt amazing. I told him that I really enjoyed doing it and hope to get to do it again. He said that he would need some time to recharge but he was looking forward to me sucking him. After finishing up my business on the toilet, I tore off a sheet oftoilet paper to tab the tip of my penis (I didn't want to leave a spot ofpiss inside Erica's panties). I jumped back in shock the second the paperdabbed the head of my penis. It was INCREDIBLY sensitive. My neck shotbackwards and almost hit the porcelain backing of the toilet. I lookeddown into the privates between my legs. My penis was bright red andsignificantly shorter and stubbier. I thought it was my mind playingtricks on. Then I saw her shudder and arch her back for a full minute as she moaned loudly through her bikini bottoms. Brian looked at me and then at her as she orgasmed seeing me jerk off to her as he spanked her. A wide grin appeared on his face as her realized what was happening. He took that moment slide two fingers into my sister's pussy. She bucked like a bronco! I was about to faint in pleasure. Then I saw him drop his bathing suit and reveal his large cock. He was older than all my classmates so. I decided to take the chance and slip down the bed. I adjusted my position and brought a hand up on her uppermost breast and cupped it. I stroked it; tenderly at first, then I rubbed my hand across her nipple. To my surprise, she responded. I extended my head forward and, with her breast cupped in my hand, I sucked on her nipple. I must have sucked on it for a good while, massaging her breast as I thrust her nipple into my mouth, sucked it and let it slip free as I pulled my mouth off it..