Sexy Fun Times/Laid/Mall/Mom/Boy/Fuck
You know from experience that assholes can stretch; even quite young children can take an adult cock with a bit of training, but this kid isn't even a toddler yet. You look at his mother for confirmation.
"It'll be okay; just take it slow," she says, her voice thick with lust. "He's used to his father, but your's is a bit bigger." She takes the oil and drizzles some over your cock.
You take a deep breath and start pushing. At first, you just push the baby away, so you hold his ankles and pull him back. You glance up from where the head of your cock is squashed against his ass and see that his mouth is open in a round 'O' of surprise. You keep pushing.
"Go on, fuck the little cunt," his mother says and you wonder what his life at home is like. "Keep pushing; it's opening now," she says.
It's true, the boy's ass is slowly stretching, but there's a long way to go before the head of your engorged cock will actually go in. You stop and hold it still; The skin around the boy's ass is white as it's being stretched and you begin to worry about injuring him. On the other hand, you are more turned on than you can remember.