There is no evidence that I am aware of that clitoral size makes any difference to sensitivity/enjoyment.

Unlike length,  comfortable sex with a large girth is not something that is largely affected by position.

However, much of the advice given elsewhere for length issues still apply;
get her worked up by lots of foreplay,
lots of lubricant,
go slow,
let her go on top and control the penetration.

Size of the clitoris does have to do with ease or orgasm. Trust me, I know. It's not the sensitivity that differs, it's the positioning. Some women like me have a really small clitoris that is placed high up so that no form or intercourse can stimulate it. You might want to try using your fingers on her or letting her touch herself during sex. Also, if she has a shallow vagina, avoid deep penetration positions like doggystyle or legs on shoulders. If you don't want to avoid them entirely then you have to make sure you don't go all the way in.

ok i guess i will put this here because it has to do with sexual positions...

I really want to try different positions and also especially Oral sex...i would like to get and also give, and i know i could talk to her about it but is that considered tacky??? i dont wanna be like "hey so how about blowjobs" or "hey would you feel ok if i went down on u?" like...im not sure how to go by it...i think she'd be ok with it but im trying to find an ok way to go about it...any suggestions??

SR

well san like you will read all over the board communication is the key to a good sex life. yes you should talk about these types of things w/ your g/f, but dont be like "hey give me a blowjob" or push her head down there and her not expecting it. im not sure how you should bring it up tho. i guess maybe ask her has she ever given a guy oral or has she ever received oral. maybe one nite when you guys are fooling around you could start kissing her around that area like her stomach and inner thighs. getting close but not actually putting your mouth there. tho it is always a big turn on for me when my b/f just kisses and licks the outside of my panties...b/c i can feel his tongue almost hitting my sweet spot and i want more...lol
see what her reaction is? does she tense up and seem uncomfortable? or maybe she'll say outright dont go there. or maybe she'll get into it.if she starts running her fingers thru your hair thats a good sign she wants you to take the dive
just read her actions and hopefully they will let you know how she feels about it... hope this helps
oh yea and once she's comfortable w/ you giving her oral and sees how much pleasure it can be she will be more likely to return the favor.

Just be gentle with her and any sexual position will work just be gentle and tell her to tell you when to go faster which is a given. Umm look some up online. Like put sexual postion descrptions and beneifits to see what works. Just be careful and you seem like a nice guy so i don't think you have too much to worry about