Hey There is no shame in exploring various kind of ways of having sex with your partner. Different ways of having sex keeps it alive as the fun and positive expectancy increases exponentially. However u r right that exploring something out of the box or smthg u have never done before can raise doubt in your mind about how your partner will react or maybe judge you.

If your GF loves you and have trust on you then you can talk to her openly about what you feel.....Pegging is normal to experience with your partner ......In pegging your gf will feel good and this give an impression of dominating like a male.......Use a good quality dildo and make sure to maintain the hygiene ......There is no point in feeling awkward or feeling embarrassed or shy......If you have understanding you can freely talk and ask to fulfill your fantasy ......And I am dam sure she will not deny for the same....If need help.contact me on seven two eight nine o seven o six o three

Communicate in same way you are mentioning here