So I was fingering my girlfriend yesterday and she reached down and gave me a handjob and when I said I was close to being done she said she didn't want to get her hands messy and had me finish it off. I got some cum on my fingers and wiped them off on my shirt and shorts (we were in her small house with her family so fully clothed slipping hands in). When I wiped them off I wiped until they were dry then they sat dry for 5-10 minutes before I started fingering her again because I'd heard when it's dry it's dead. Even so I'm still paranoid that she may become pregnant.