My small breasts and already puffy nipples were feelingvery engorged. It's like all the blood in my body was rushing to mynipples. I could see that sm...ke escape from his mouth again. The flesh onmy chest started expanding. My breasts pushed out more and more with eachuttered word. I stood there stuck in place and I couldn't help but moangirlishly as Durlock further changed my body. Durlock got closer to meand caressed my larger breasts with his crooked, wrinkly fingers. Heeagerly pulled down. She shook her head and said, "No, I think you'll do a better job!" I nodded, smiled, and reached my right arm around her waist. As I held her midsection, I could feel her breasts on the top of my forearm. The movement of the bus caused her mounds to rub gently on my arm. I liked it!She then turned her head back toward me and said, "Maybe it's best if I hold onto you!" She set her purse/briefcase on the floor and reached her arms behind her. She held onto my legs, freeing up my hands. I now knew. I was mesmerized, so just stood there speechless, watching Colleen’s bouncing boobs and Tyler’s rocking hips, wondering if I should apologize, leave, stay silent…or what? Just then, Tyler grunted and thrust his hips upward, shooting a load of cum into Colleen’s mouth. She swallowed, and kept pumping his shaft and sucking any additional jizzm from his cock until he stopped thrusting his hips and settled back into his seat with a soft moan.She slipped his prick out of her mouth, still stroking it. Pulling the foreskin back over the shiny, purple head. Letting his see how wet I was. Back and forth, gliding like silk over my head."Mmm yeah. I want to cum for you Robbie."I leaned down to face the cam as he had done before. "Cum in my mouth. Shoot for your baby."I licked my lips and then opened them. My monitor showed my open mouth on cam, alongside Dave's rigid member.I watched his last few strokes and then watched him come off. Close up. Watched as though his dick was mere inches from my.