I recently had sex with my girlfriend and unfortunately I have ejaculation problems. Due to our long distance I only see her once a week and wasn't able to cum the previous week. Obviously this frustrates her but she says she understands. This however still plays on my mind and when I last pulled out of her I had lots of white crusty bits flaking off my penis. Does this mean she's sleeping with someone else or could it be her own discharge? Please help Thanks
Bearing in mind she doesn't orgasm from sex and I hadn't stimulated her oraly yet.