Me and my Girlfriend have been together for some time now and she just started birth control pills. She has been the only one i have ever made love with but she has been with one other guy besides me. She told me they always used condoms except once, This had to be a year ago, and i know she is clean. IF we have sex without condoms is there any possible ways to get any sexual transmitted diseases. If i have sex with her vaginally and then have her anally will there be possible chances of infection ?

Thank you so much in advanced,

Riku.