That happened to me in college. Had a fat chick who was in a couple of my classes. She was from Jersey and I am from Delaware and both were Eagles and Phillies fans, so we got along really well, but I was not attracted to her physically but she was cool to hang out with in class.
We had a project we worked on, she got good grades so she was a logical partner for the class project. After the project was turned in, we went day drinking, we both got hammered and I told her instead of going home(She could barely walk so going home was not an option) she could sleep at my place. I had a bed and futon in my room. I was not going to let her pass out on the couch, because my roommates would have drawn stuff on her and stacked pizza boxes on her while she slept. Gave her the futon, and in the middle of the night I woke up and she was blowing me. I was still hammered and could not get a nut, so I fucked her, but felt like I got taken advantage of by her. The next morning I woke up and she was blowing me again, and I remembered a news article that semen has been proven to cure depression in women. I figured since she was fat, she was probably depressed so I let her blow me to completion, so I could help her out with her depression. After that I would never drink with her again, because I could not trust her.
#MeToo