He drops his pants and starts groping my ass roughly. The next thing I know he has a big thick finger working it's way into my ass. I always use a lit...le KY before I leave home but not enough for what he had in mind. Guess the older creep never heard of spit either.I spin around and drop down to my knees, hoping a blow job will distract him. He's short dicked but thick, mostly a meaty head at first glance. I lick him up and down, work his head and get him all slick with spit. He grabs my head. Tommy looked back at me and he pleaded ‘Do it again Daddy.’As I pulled my hand and cock clear of his bung-hole I gazed inside it and saw my cum pooling in a low spot in his guts. I went back to eating his ass out but without quite the passion of earlier. Tommy was tightening his ass and hot air emerged from the depths, then my cum spurted from his now pouty asshole which I eagerly lapped up.At this time I realized I hadn’t been doing my duty to Tommy, so I grabbed his cock and enveloped his. It seemed to be bigger and had more pubes. He said, "Yes, and I noticed the same thing with you." After a few moments of awkward pause, Bob said, "and it gets much bigger...so big it reaches my belly-button." I did not know how to respond with anything other than "uh-huh." Bob then said, "You want to see?", and before I could answer he was already playing with himself.I watched as Bob's cock was getting larger and larger. Mine was doing the same but I did not have to do anything...it was. ..A soft whine from Rex behind her interrupted the pony tailed blonde from pursuing this stream of thought. She turned, smiling now, and looked down at the big handsome animal Marge Levitt had parked with her. He was such a lovely beast that her former disgruntlement at being saddled with him abruptly evaporated, and she got down on her haunches and took his warm, soft muzzle into her hands, looking deeply into the animal's big eyes."What is it, Rex? Getting hungry? Or thirsty?"That was it, she.