Well, it's difficult for me to imagine without the proper...er...lol anatomical similarities, but what does the pain feel like? I would imagine that if it felt sore, like in the same way a overworked muscle does, perhaps, that it'd be attributed to size. Going with the same line of thinking, I would think if it felt raw, he was too rough, or you weren't properly lubricated. Either way, too much friction in the latter.

lol Do keep in mind, that's me speaking as a guy...to say I'm "guesstimating" is generous. But I would think that would stand to reason? Either way, if it doesn't ease up very soon, I would recommend seeing your doctor ASAP. Better safe, and all.

But my main point...if he's being too rough, tell him so! He should respect you enough to "ease up" for your comfort.

I hope you feel better soon.

Hugs,
Harley