Serious relationship problem...what would you do? (guys mainly)

[Walter]

I've been with my new girlfriend for about 2 months now, and last week we had sex for the first time with each other, but it was my first time having sex with any girl. We're both ending our freshman year of college. I came to this forum because she's in a sorority, but I won't mention which one. The sex it great and all, but is sex supposed to have an odor as well? She asked me to have oral sex with her, but down there I'm not used to the smell. Is it supposed to have an odor? I didn't like the smell, but I was afraid to tell her. It smelled kind of like old beer, lake water, and sardines. It was really strong. I'm asking the guys here, because I just need to know it this normal? Do any of your girlfriends smell in this area? I also need to know what you guys would do if you were in my shoes. Should I tell her? I just don't want to cause friction between us because I really like her, but the odor is just really strong in that area. I gagged once, she asked me was I ok and I told her I was fine. I made up something else so I wouldn't hurt her feelings, plus I'm not even sure if this is normal or not. Lastly, what would you do if your girlfriend told you that you were smaller than what she was used to? When I took my underwear off, she kind of smirked and when I asked her what was so funny, she said nothing, she just told me that my penis is smaller than what she's used to. When we had sex, she acted like she was really enjoying it. Do you think she was faking it? How would I know if she was faking it?

Thanks in advance.