i'm new to the forums, not new to women.
why not just something like... "i know i'm funny.

by the way, me and some friends are ___________ on ________, you should tag along."
now:
1) it's difficult to construct a text message for you to send or to critique yours without knowing more details about the situation.
2) obviously, you would have to have something going on for this to work, but fuck, i mean i have taken dates to weddings on several hours notice.