We put our bags down and stripped down to our boxers to go and wash. Mike was slightly more built than I ever remembered him being in the past, he had... clearly been working out. His abs were clearly defined and with the sweat glistening in the fading light I could feel a stirring in my pants. So that he didnt notice I quickly made my way into the water. I was worried Mike would think it a bit awkward if he noticed I was getting an erection watching him undress. He quickly followed me into the. He appeared to be looking in our direction, watching my wife as he stroked his cock. Now I know she was getting turned on because her eyes seemed to be fixated on his penis, and it didn’t go unnoticed by this stranger from across the way. This went on for a short period of time when we were shocked to see that he had picked himself up from where he was sitting and proceeded to walk towards us.He then positioned himself right in front of us where we both could see his cock up front and personal.. " Don't take it like we're trying to push you and Erin to have sex today," said Mom. "We would never do that." I wasn't and neither will Erin take it that way." I had a sudden thought. It was sort of a lie, but it might smooth things over. "I thought maybe you already knew that Erin and I were doing it and you just wanted to help us celebrate because you're loving parents."My parents didn't say a word. That was kind of the effect I was hoping for."Can I ask a question?" I said."Sure," Dad. "Oh wow!" Renee said, staring at his massive cock with wide eyes. “I’m just as stunned by how big you are every time,” she said.Just then the man on the left dropped his pants and reached in to the opening in his boxers pulling his long ten-inch dick."Oh my god! I've never seen so much dick in my life!" My wife gasped, licking her lips while wrapping a hand around each hard cock. She turned her head to the left wrapping her mouth around the head of the thick black cock. She slid her lips down.