If your boyfriend has sperm on his fingers and then "finger fucks" you then sure, it's possible.
If you and your boyfriend are actually hygienic and wash your hands like you're suppose to before putting them in a vagina then there's nothing to worry about.
And...I'm sorry but...finger-fuck? Are you serious? That sounds so disgusting. Just say "he fingers" me or something. Finger fuck sounds something a whacked out prostitute would use, "Hey, baby, wanna finger fuck me? $10 tonight, tomorrow, and next week only!" [ Peeps's advice column | Ask Peeps A Question ]
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