Please answer this ASAP?

I am a teenager, and my parents are in their early 40's. I recently have seen some weird sexual things between them sorta come out of nowhere. The sheets on their bed are stained with ****, and I went into my dad's sock drawer (I couldn't find socks anywhere!) and found a boatload of condoms in there! I get socks from their all of the time, and have never seen them. (I didn't think married couples used condoms!!) This morning I was looking through the sent messages in my parent's e-mail because they told me to check something there for them today when they were at work, and I snooped down to some messages from a couple motnhs ago and found that they had written to some Canadian company called The French Kiss something looking for a nice attractive woman to 'pleasure' the two, expecially my mom! The e-mail said they had stayed at a ohtel up there before on a Monday in November. We're only 3 hours from Montreal, but why would they skip work to do that? How would i not have known?!?! EWW! they have a restaurant and alot of young teens and college kids wait tables there, and they've told me before that my parents definetly have sex, but why the f would they make it so obvious or ugh i can't even think about this. Also, this morning my mo was resting on the couch because she didn't feel good and my dad went over to her and said something like "Now we can't get it on tonight" all sexy and stuff.. WTF they're parents, they're not supposed to do this stuff. HELP!