Is it normal for the person you are having sex with, likes you to stick your in finger in their ass when they are on top? my girlfriend makes me do it all the time, but i can't take the smell on my finger afterwards...
Try having her take a bath or shower before hand and have her clean her butthole really good. Of course this is normal, even guys like it, once they become comfortable with their sexuality, considering the male G-Spot is in your anus (Prostate Gland). Doggie-style with your thumb in her bumb, is a great one, she'll scream! Also, NEVER put any part of your body that was in her ass first into her vagina or mouth or vice-versa, this can cause an extremely bad and disgusting infection.
Your answer is Pop-Rocks. Hide some beside the bed and when it's time push a wet finger with Pop-rocks into her. Use alot. She will love you and be your sex slave.Make her wear a leather collar with your name on it.
Just shower down afterwards or get her to lick you clean.
Anyway the simple solution to your problem is to stop sniffing your goddamn finger.what is so hard about not sniffing it?