Lay with grandma

You move your hand over to Katherine's stomach and slide it inside her waistband. She lets out a startled moan when you grab hold of her erection pressing against her leg. You can feel her heartbeat through the veins running along the shaft beating with the same rhythm as her heart. Underneath her dick is her hefty balls filled to the brim with cum. Underneath that is her tight, warm pussy.

Katherine takes your hand and places it back on her cock which she pulls out. You understand what she wants you to do so you start to jerk it with slow gentle strokes. She giggles in your mouth and you can feel her hand touching your cock.

This is bad.

Being the virgin that you are, you are so close to cumming from merely having your dick touched. Your grandma seems to notice as well when you start to squirm in her grip. Surprisingly, you don't cum, as if some magical **** is helping you remain calm.

You end the french kiss with a long trail of saliva connecting both of your lips.

"Sorry James, I can't help it," she says with a ragged breath. "I need you inside me."

"A-Are we finally going to do it, grandma? I'm ready!"

"Good boy. Lie down and let me take care of it. I'll do all the work."

Your grandma takes off her bottoms and you take off yours, tossing both of your underwear on the floor. She straddles your waist and rubs her cunt on the shaft of your penis slowly lathering it up with her cunt juice while her dick drips precum on your belly. She then positions her pussy over your cock, but you can't see the moment it penetrates due to her balls blocking your vision.

"Are you ready, honey?"

"Yes! Please!"

Grandma wastes no time and drops down like a sack of potatoes, instantly spearing herself on your raging dragon breaker.

"Anh~" Grandma softly moans. "It's been so long."

"G-Grandma! I...I can't...gahh!"

You cum instantly inside of Katherine, letting out a drinking glass amount of cum inside her sizzling sloppy pussy.

"My my. You certainly had a lot pent up." Katherine giggled as she jerks her own cock. "James, Anh, I'm going to burst too. Get ready!"

With a final jerk, Katherine's cock slightly enlarges before a torrent of alabaster spunk fires out of her dick hole and all over your torso and head. It stops after a few seconds and by then you already started gathering it all into your mouth not intending to waste a single drop. You won't eat the cum on the floor though. That's dirty. You also feel her pussy coiling around your dragon and a little bit of twat drool oozing down your thigh.

"Oh...good lord." Katherine pants and stares at the ceiling in a daze, her cock and pussy dripping cum. "Giving myself a cock was such a good idea. James, did you have fun?"

"ah...yeah..."

"Good. We'll have to have a lot more sex to train both our stamina and endurance. We have all the time in the world since were both immortal."

"That's great. Your awesome grandma."

"..."

"hmm. Perhaps I should put him back to his old self. He doesn't seem right like this."

You aren't sure what Katherine was mumbling about but she grabs a cookie from the tray and takes a bite.

Suddenly your mind fog clears and everything you have done and said up to this point dawns on you.

"Huh?"

You just had an orgasm inside of your grandmother, who now looks like a 26-year-old bombshell. Not only that but she has a cock! And you just gobbled up her cum like a creamy dessert.

"..."

"Uh...g-grandma? Is that you?"

"The one and only."

"..."

"w-what's going on?"

It's not like you don't know what a futanari is but straddling your cock is a futanari. The fantasy gender from those weird cartoon porn. But that isn't the worst of it. Why does your grandma look so young? And what was that about marriage?

"It's good to see you like your old self James. If I have to be honest, I was getting a bit worried about leaving you in that state. This is the darling grandson I fell in love with."

Katherine leans down pressing her bursting tits on your chest while your cock is still lodged in her cunt. As insane as the situation looks to you, you are still turned on. It takes great willpower from thrusting upwards.

"How do you feel, baby? You can tell grangran."