For several reasons. First, he is being very selfish, if he expects you to just mount him, when your pussy is not wet and relaxed. Also, when being ridden, he does go deep, and it feels very good to have your dick deep into a woman. Also, cowgirl is good for the guy watching your tits bounce around and to play with, which is a lot of fun, and he also gets a front row seat, watching your tits bounce, and watching you slide your pussy up and down on his cock. Again, he's being very inconsiderate, not letting you get sufficiently wet and relaxed, before getting deep in you.
He obviously likes it but probably doesn't understand that it's not comfortable for you right off the bat. Tell him you need to start slower in a different position to be able to get to the point where you can comfortably take his huge dick inside you in cowgirl. Ask him to eat and finger you first. Then let him know what position is best to start. If it hurts regardless, ask him to use some lube and discuss this with your doctor. If he doesn't respect your wishes he needs to find a new girlfriend.
Talk to him about warming up first. Sounds like he’s getting ahead of himself.
Scroll Down to Read Other Opinions
What's Your Opinion? Sign Up Now!Presumably, he likes how it looks and feels (physically and/or emotionally). He likely doesn't realize you're not comfortable- talk to him. If you don't tell him, he won't know.
For a man, having the woman on top is the easiest position: the man on top (missionary) requires much more work. I much prefer doggie, but if I can get a girl on top then It will be an easy session.
I mean what better way to get some nice eye candy and some boobies to play with? That said I do not support sex that hurts one of you without that being what you want. Shame that he likes it that way but you can't justify hurting yourself just to please him.
Because he is a selfish POS. Let me guess, you do all the work riding him, and he won't go down on you either.
He does. And cowgirl is only done for a while, then over to missionary, then something else
He's still selfish.
I love cowgirl but prefer to start with missionary as it's more intimate and you can kiss and trade tongues, but the go to cowgirl as she can control what happens and the angle towards her clit, then Finnish doggy as I can get in the deepest that way and grab her hips and fuck her pussy hard.
What is Finnish doggy?
Sorry I meant to finish by doing doggy
Oh. I thought is was a variety of it performed in Finland only 😅
Everyone has their preferences. He like cowgirl. Explain to him that it is painful to you at first and you need some more foreplay. Communications are important.
He likes the feeling and your tittys going bouncy and I'm pretty sure your boyfriend loves playing with them.💞
Tell him to chill. Take your time "settling in.". This is about your experience just as much as it is his. If he's impatient, he can find another girlfriend.
Because it is his favorite position
Why? Why? Why? Why?
Yeah, why?
WTF does it matter, it's what he likes? It's not some evil conspiracy.
Comfort and stimulation
Well, maybe he likes to see your face and boobs. Also, I do start with cowgirl sometimes for the very same reason, it allows her to control the depth of the penetration, not sure why that’s not working for you.
Because he presses me down on his dick so it goes all the way in from the first second
Ok, tell him to not be a jerk, lol sorry! Of course it feels super nice when you get it all the way in, but he needs to let you adjust.
He needs to slow his roll. Does he go down on you?
I am the same. I like when she is unser control so I Last much longer
He probably like the way you ride him.
Sure hope he does!
Sexual Relationships 
Sexual Health 
AI Bot Choice
Superb Opinion