Blackmailed

Your sister just walked in on you sucking your own dick. The orgasmic waves ride over you. Unsure of how you feel about what happens. It still sits there. Rock hard. glistening with your juices. You don't know what to do.

"Bing!" Your phone got a text. In a brief moment of clarity. Knowing that you are at the least for the moment satisfied you decide to check it.

"Come to my room. I wanna talk about this. Bring whatever your using to put your dick on the wall." After your text your hand absent minded moved to your mouth to lick off the last of the jizz on your hand. You decide to read the manual that you left earlier before getting your sister involved with whatever this thing does.

"Oh god." A CACR this explains all the feelings your are having. You already want to have more cum again. Your balls are full, sloshing as your cock twitches every couple of seconds. It eats at you to just go over there and place your lips on it. Your hand without you noticing moving up to your lips again. They feel a bit puffier than normal. It's so tempting to just put the ring on the manual and face fuck yourself. But your curiosity with your sister eats at you.

You walk out of the room. Leaving your cock where it is. Still barely clothed you walk down the hall and knock on your sister's door.

"Come in!" she says. Stepping in you see her sitting on her bed. Her nipples still erect and booty shorts revealing both her great legs and her mid drift. "So, what is that thing that let you suck your own dick?"

"It's a cock ring. I can put it anywhere." You are standing in the door way and shut it behind you.

"Prove it, put it on my phone." She tosses her phone to the edge of the bed.

You look at it, staring and after a few seconds your cock bobs up over her screen.

"Oh my god!" She says, looking at it. Staring for a second. She keeps her eyes on it. "So from what you look like now, and from the. Display I saw, you had cum a couple of times. Does this thing keep you hard? You look entranced. I was a bit too. Why?"

You don't know how to feel, shameful a bit that your sister is asking you. But you feel like she should know. "So this ring makes my cum, addictive. I couldn't stop myself. I kept going."

"Do you want it now?" She says looking up at you with a strange look in her eye.

"Yes!" You say a bit louder and more excitedly then you expected.

"Okay, so I'm not going to tell mom about any of this. But, you are going to do what I say. Okay John?"

"Sure. What do you have in mind?" You say, a look of fear in your eyes.

"Okay, go get me the manual for this thing."