awkward sexy
When one finds a naturally awkward moment or person to be sexually appealing and exciting. This word can easily be used to replace the word dirty (when using the word dirt in a sexual way)
That boy has on really tight jeans but a really big ass_ that's awkward sexy or I was hit on by an 18 year old freshmen who was wearing only boxers, I felt awkward sexy.
Awkward Attempt at Sexy Times
Awkward Attempt at Sexy Times (AAST) is when your sexual overtures are rejected due to inappropriateness of situation or setting. The key difference between AAST and being creepy is that in this case the object of your affections does not feel threatened or in any way afraid of you. They just think you're pathetic.
You and your new girlfriend stopping by at your ex*'s house unannounced to ask if she'd like to go get a drink with you all. This is an Awkward Attempt at Sexy Times.
*Bad break-up and someone you're not friends with now.
*Bad break-up and someone you're not friends with now.