this morning, after waking up at precisely 8:55am I received a blowjob from the g/f. Afterwards I noticed a stain on the lower left hand side of my boxers, is it spit or cum? If itís spit then Iíll just keep them on for the rest of the day, but if itís cum then Iíd change them. what do you think? Should I just play it safe and turn them inside out?