"Well... It is my professional opinion that boys should not be restricted by tight underwear during puberty as it can inhibit growth, and my hypothesi... is that perhaps this is an extreme case of it. Normally boys have completed puberty by age 18, but from the looks of things your son has barely even started puberty if at all, despite his age, so it is feasible that he is suffering from delayed onset puberty..." My mother questioned "So what does this mean?" "Well Ms ****" the doctor responded. They have to be extremely open minded, bi or a closeted gay dude. I’ve learned not to make assumptions. Some of the manliest, macho dudes loved having me fuck them long and hard in their ass. When I’d dumped my load deep in their tight virgin holes I’d let them have me any way they wanted, no holes barred."You still here?" Matt asked. "You seem like your mind is somewhere else." I'm sorry," I said. "I'm back now." I leaned in against him, and Matt ran his hands over my ass. As usual I kept. “Let me suck your dick one last time baby” I whispered in his ear as I nibbled it. He smiled and we kissed. Deeply, each tongue working the other. I dropped to my knees. Unbuckled his belt. Unbuttoned his jeans and pulled down the zipper. Eased them down to his calves. Back up for his boxers. His cock was already pushing it’s way toward the ceiling. I felt it with my hands and kissed it a few times through the cloth. I couldn’t get enough of that cock.I eased the boxers down slow, exposing his. It felt so good that I started to cum and cum and then cum some more.My cock stayed hard so I left it in her. She smiled and we started to have sex again. It took longer and it felt even better.Mom giggled and said, “I’ll call the school and tell them something so that you two can stay home and fuck all day long if you want too.”I may have fucked my sister that first time, and I may have had sex with her the second time, but the third time we actually made love. We moved as one, we enjoyed each.