Do menstrual cups, uh... stretch out your inner girlie parts?

 I just got my first cup yesterday. I had originally wanted a mooncup uk, but inadvertently got the us keeper mooncup. I didn't want to wait for another, b/c shark week is supposed to start within a week (even though I'm spotting early). I'm using Seasonique, so it will be 3 more months b/c I would get to try a cup again. 

Anyway, I don't seem to be having trouble getting it in, but taking it out hurts. It's not the suction problem I've read about in others' posts. It's when the great big rim comes out my junk unfolded. Ouch! I couldn't believe it! In a way, I'm glad that I have the us mooncup now, b/c it's diameter is one of the smallest. 

So, how would one take it out if it were full, (I'm just spotting now, so I don't even know what taking out a full cup would be like), without spilling and without hurting. Also, with this big silicone up inside me off and on for a week, would the vaginal walls risk getting stretched out? I don't want to be stretched out... Please help!

By the way, these postings have answered so many other questions for me. You ladies rock!