Ever since he was a puppy, my dog was always a little too interested in me. He was always trying to put his nose up where it doesn’t belong. For years I didn't let him, and for years he persisted. Now he licks me whenever he wants, mostly right after I jerk off. He'll lick me so hard his tongue goes inside, and for so long my junk will get sore.

But I live with a SO now, and they don't know about this. Sure, he's after them just as much as he's after me, but they don't let him lick. So I find myself in situations where I'm lying next to my sleeping SO with a dog tongue inside me, and I have no idea if this counts as cheating. He likes to watch us fuck, too, and gets really excited about it. I've started to take it further, and occasionally I suck his cock. He's neutered, though, and so far hasn't seemed to enjoy me returning the favor too much.

The dog is getting old now, and I don't want to deny him something he enjoys. But if I ever get another male dog again, I probably won't neuter him so I can see how far it'll go.

I can pretend and say this is happening because of a pre existing relationship we had before I met my SO, but I enjoy it and will always want a rough dog tongue to clean me up after I cum.