Grandpa

My Grandpa has dementia. He's 74 and in great shape physically, but he's pretty much gone mentally. The bad part is he lives alone even though my aunts check on him often.

The family thinks it's hilarious that he thinks I'm his girlfriend. Up to now, I shrugged it off.

For more than a year he has been convinced I'm his girlfriend. He calls me "Sexy" most of the time. The first time anything happened, we were at a family reunion. He kept coming up and grabbing, rubbing and pinching my ass. Everyone would laugh and say "watch out for Grandpa!" when he'd grab me. We took him to a family funeral and at one point he stood next to me during a prayer and held my ass the whole time we prayed, I finally had to walk away so he wouldn't keep grabbing me. There have been other examples, and more than a few times he even got an erection around me, a big pole sticking up in his pants.

I wanted some pictures from the attic and arranged to meet my aunt there so we could go through them together. I got to his house and I received a text that she couldn't make it. I went in, "Hi Grandpa." "Hi Sexy" he says. I go up in the attic. I'm bent over a tall cabinet fishing through pictures when I feel a bare hand slip under my dress and grab my ass. I jumped!

He's standing naked. He is huge! Bigger than my husband, bigger than anything I think I've seen or had. I've had a few. He keeps trying to hug me and his dick stabs my belly. I know we're alone, so what the hell, no one will believe him if he tells. I bend over and suck on his dick. Grandpa loves this and grabs my hair as I suck him. I lube him up, then quick turn around. I reach under my dress and pull down my panties. I pulled my dress up to my waist.

I quick bend back over the cabinet, showing my vaj. Grandpa moves up and he pushes his penis in my pussy. It's a little rough. He gets deep enough that it starts to hurt a little. I'm adjusting to his size and think I can pump on his a few times then get off so he doesn't cum in me. I pump two more times and suddenly he goes "Aaaahhhhh" . I feel sperm spraying inside me. I try to push him back and he says "hey" and pulls himself harder into me by holding my hips. He pushed so hard and fast I see stars.

It feels like a huge load in me. I might get pregnant but at least it would be in the family. I will be doing it again if I can get alone with him.