The boyfriend revealed everything in a shocking post on the open-forum Reddit, where he asked users for advice about the bizarre situation.
The anonymous man nipped to the bathroom after having sex with his girlfriend, but was shocked when he returned the the bedroom.
In the post, the American man, who is in his 20s, says the woman “screamed” at him to find out what he was doing in the bathroom, which he thought was odd.
However upon his return, he caught his girlfriend “stealing sperm” from the used condom.
“Which I thought was weird as f***”
He explained: “My girlfriend and I are both late 20s. About an hour ago we had sex. She is not on the pill so we use condoms.
“I had just finished and I went to the bathroom after that. She screamed at me to the bathroom ‘peeing or pooping?’
“Which I thought was weird as f***. Jokingly, I said ‘pooping’ but really I was just peeing.
“I came back into the bedroom and found her pouring the contents of my used condom inside her vagina. I’m nervous as f***.”
The man then went on to ask whether this was legal and what would happen if she gets pregnant.
He also wanted to know whether he owns his sperm as he did not give her consent to do this, he also wrote that he had tried to take the condom away from her.
Unsurprisingly, people were disturbed by the woman’s actions and even warned him to stay away.
The post, which secured more than 48 comments, gained a whopping 12,500 upvotes on Reddit.
One wrote: “Cut her out of your life immediately. Do not contact her in anyway. If she claims to be pregnant demand a paternity test.”
Another said: “It’s not against the law, you had consensual sex with her.”
A third replied: “Apart from all the other good advice about getting her out of your life, call Planned Parenthood and ask them about the likelihood of her getting pregnant via this method.
“I’m guessing it’s slim to none based on air exposure but I’m no expert. If nothing else, an expert opinion will give you better information. Good luck.”