Birthday Present: Part I

I had never expected the birthday present Liz gave me. We usually kept to a few sex toys (like anal plugs and vibrators, which we tended to wear out surprisingly quickly) and some drinks with friends. We would go dancing, and I would always tell her to do something like take her panties off in the middle of the dance floor and hand them to some poor deprived bastard before we left. Or one time I told her to grasp every guys dick on the dance floor. She always did as I told her to, and when I slipped a finger into her pussy afterwards it would be shivering and the liquid would run down my fingers. Bar bathrooms are surprisingly good for fucking, and no-one asks questions. They just listen in. Which made her that much hornier. We were at one bar, in the stall, me pounding her from behind, her groaning and quivering beneath me, eyes closed, biting her lip, hands spreading her ass cheeks, when she hears someone come in and the laugh they make when they realize what’s happening. But this time, she reached over, pushed open the stall door, and looks straight at the guy who just walked in. Without breaking eye contact, she growled at me, “In the ass. In my fucking ass.” So I ripped out my dick and plunged it deep into her, further than her pussy had ever allowed me. The other guy by this point had taken his own rod out and started furiously jacking at it, and Liz never broke eye contact, just moaned louder and louder, and I swear it was the hottest thing I ever saw, until the guy gets the balls enough to walk up to her and smear his precum over her mouth. As he did that she pushed herself violently back onto me, biting her lip to stop herself from screaming, and I felt a jet of liquid as she squirted her load onto my shoes and the floor. She opened her mouth to start to pant from her orgasm when the guy shoved his dick in her mouth, and I swear to you, she took that guys whole eight inches and fucking suckled him. This was too much for me and I felt my balls tightening and I yanked myself out, cum shooting out onto her bare ass. She disengaged her mouth long enough from the strangers dick to order me, “lick it up. All of it.” So I bent down, tongue starting on one cheek and taking one finger to swirl a little cum around her relaxed little asshole. I was so absorbed with the feel of her heartbeat through her anus that I didn’t realize that he was cumming until he jerked his head back and moaned something about “magic tongue”. She just smiled and swallowed.
But I’m getting distracted. You’re here to hear about my birthday present. Usually on birthdays the one who’s birthday is not being celebrated will wake the other up with sex, and maybe a new sex toy or costume. That had been our tradition for four years so I was honestly disappointed when I woke up under my own steam. I was just plain confused when I looked over and she wasn’t there. I had a massive erection making a tent in the sheets, and it begged for attention, but after masturbating for a minute or two I had to stop.