Hahah bro I can understand how you felt.
Some girls' mood swing so highly unpredictable! I encountered a few times where the girls say ok to sex but either before inserting stop me or halfway stop me.
Few years back, there was this model girl 20+ who I have been chasing for some months. Pretty and many suitors. We have a very weird relationship. We always met up for meals, movie, club, drink like what other normal couples do. Except we are not couple in name. We hold hands, hug, kiss when not in public. I sleep over her place many times but never have sex. She doesn't allow and she still goes out with other guys. Not sure if they did anything else but I can't say much.
Anyway, she doesn't wear bra or panty when sleeping. Seen her changing in the room and seen her naked body. She will ask me to turn around but I always peep and she knows. Fair skin, b-cup, nice ass. My dick is trying very hard to resist the temptation everytime.
I have not touch her (never touch breast or pussy althoght we slept on her bed) prior to this incident. We went drinking 1 night and she was very high. When we reached her bed, she started to tease me by taking off her clothes under the blanket. (lights were off) When she was fully naked, she started to strip my bottom and was rubbing her pussy against my dick on the bed. I wanted to bonk her but she didn't allow. Had a feeling I was her sex toy but who cares. We were both lying on the bed side by side but I was behind her and my dick between her pussy. I played with her nipples and there was no resist. Her pussy continue to rub my dick. We went on like this for 10-15mins before I moved my body and somehow my dick was accidentally inserted into her pussy.
She let out a moan sound and I freeze.
Then she started to move her ass up and down with my dick inside her. I got the hint and pump her. Within 20-30 sec she cum and she pull out my dick.
Then she wanted no more and wore back her clothes and sleep. I was like "wtf". Then came the rubbish next day about we should not be doing this and I should not stay over her place.
The relationship did not work out..... did not even start. But I spend more than enough time and money on her and decide to move on too.