Your Dad

Its your homophobic dad who interrupts you, like Tim, your father would disapprove of gays and insult them every chance he got.

"John, your mothers asking if you wa-"
He looks in horror as he see's the dick on your bed
He stares at it for a few moments
"John what the fuck is this?!" he tugs your cock
you moan slightly, however your dad is too focused on your dick to hear you moan
he starts pumping your cock up and down, he doesn't know why, your cock is just so enchanting to him
"I don't know what your talking about?" you question him, watching him gather your precum as lube
"Whatever, I need to go take a piss"

He's stroking your dick and his cock begins to harden
"I'm not gay!" he thinks to himself as he starts to lick at your cock
He licks the base of your cock and slowly brings his tongue to the tip, swirling his tongue around it and taking the whole thing in his mouth, at first he gags but he gets the hang of it.
Your cock throbs at the hot mouth sucking on it
he starts bobbing his head up and down on your cock, he fishes his dick out his trousers and starts to jerk himself while sucking you off.
His soft moans become louder as he deepthroats you
His mind is focused on pleasure, he doesn't notice you spying on him
he takes off his trousers and positions himself on the bed, he lines up your cock with his hole and begins to fuck himself

He jolts at the pain, he slowly moves himself up and down, badly trying to cover his moans.
Your cock thrusts into him, granting his virgin hole no mercy. You start pumping into him,
making him moan more
He starts moving faster, his breathe becoming more burdened
You two build up a rhyme, he's good at taking your cock. Might wanna make him your cockslut since he's so good at it.
You thrust deeper, faster, your cock is ready to cum
"AH!" he loudly moans, his cock twitches and ropes of cum start spilling out. You obviously hit his sweet spot, at the same time you fill up his ass with your load.

He finally comes to a realization that he just fucked himself on his sons bed, and you might come in at any moment.