"Take it out."

Mark glanced nervously at the back of dads head, but when I squeezed his swollen cock through his underwear he swallowed hard and putting one hand under the covers unsnapped his pants and lifted his hips off the seat. Between the two of us we tugged his pants and underwear past his hips allowing his cock to spring free. Mark put his hand back in his lap and looked down pretending to pay attention to his game. I grabbed Mark's cock with my hand and squeezing hard gave it one good slow pump. Mark made a small sound in his throat and his hips twitched. I stroked...