I've been letting a guy with a girlfriend cum inside me because she never does

There is this guy I have been hooking up with for about two weeks. His name is Reed. He has a girlfriend. I know that because he told me the first night when we were already in my bed and his hand was already between my legs and I said "I don't care" and I meant it.

He tells her he is at the gym. Every time. He shows up at my apartment in basketball shorts and a hoodie with a gym bag in his car and he fucks me and then he goes home and showers and tells her he had a good workout. I find this very funny honestly.

Reed is tall. Six three. Big arms. Big hands. The kind of body that makes you want to climb all over it. He fucks like he's running out of time which I guess technically he is. I guess he has only an hour. Maybe ninety minutes if she is not paying attention. So he gets to my apartment and we skip the small talk and he picks me up and carries me to my bed or my couch or once just the hallway wall and he fucks me until we are both done and then he leaves.

Last night tho something changed.

He showed up at nine. I was wearing one of his old shirts he left at my place and nothing else under it. He walked in and saw me and his eyes dropped and he said "You're making this very difficult."

"Good" I said.

He picked me up. Carried me to my bedroom. Dropped me on the bed and pulled the shirt off over my head and I was naked under it. He took his shorts off and his cock was already hard and he got on top of me and put his mouth on my neck and I wrapped my legs around him.

He pushed inside me and I was already wet. I am always wet for Reed honestly. Something about the fact that he should not be here makes it hotter. He started fucking me deep and hard from the first stroke. No warm up. He does not do warm up. Normally I wouldn't like that, but since I know he has time pressure I have been actually warming myself up before he arrives. I am just so understanding aren't I?

I was moaning loud and he put his hand over my mouth and I bit his palm and he groaned and fucked me harder. I grabbed his shoulders and dug my nails in and he pulled my hips up so he could go deeper and my eyes rolled back.

"I want you to cum inside me" I said.

He stopped moving. He was still buried inside me and he was breathing hard and he looked at me.

"I'm serious" I said. "Stop pulling out. I want to feel it."

He has been pulling out every time. I let him because at first it was whatever. But last night I wanted it. I wanted him to fill me up and I wanted to know that he was going to go home to his girlfriend with my pussy still wet on his cock and his cum still inside me. I know that makes me a terrible person. I do not care even a little bit.

"You're going to get me in trouble" he said. "My girlfriend never lets me finish inside" he confessed.

"You're already in trouble" I said. "Now fuck me."

He started moving again. Harder than before. I could feel every inch of him and he was hitting spots that made me forget my own freaking name. I grabbed the headboard and he grabbed my hips and we were loud and I did not care if my neighbors heard. They have heard worse from me.

He flipped me over. Got me on my hands and knees and pushed back inside me from behind. I buried my face in the pillow and he grabbed a fistful of my hair and pulled my head back and fucked me deep and I came so hard my arms gave out. I fell forward and he followed me down and kept fucking me flat on my stomach with his full weight on top of me. His mouth was on my ear and he was breathing hard.

"I'm gonna cum" he said.

"Inside me" I said. "All of it."

He came. I felt every pulse of it. Deep and hot and he stayed inside me and his cock twitched while he finished and I clenched around him and felt how full I was. He stayed there for a while. His weight on top of me and his cock still inside me and his breathing slowing down against my back.

He pulled out and I felt his cum drip out of me onto my sheets. He rolled onto his back next to me and stared at the ceiling.

"I'm so fucked" he said.

"Yes you are" I said. I kissed his shoulder and then I said "You should probably go. She's going to wonder why the gym took so long."

He got dressed. He stood at my bedroom door and looked at me lying there naked with his cum still leaking out of me and he said "You're dangerous."

"I know" I said. "See you next time."

He will be back. I already know what I am wearing. Or rather, not wearing.