Think Laverne and Shirley, Lucy and Ethel, Lena Dunham and Zosia Mamet are double funny female duos? Well, okay…but you haven’t seen novelist — and goddess of the comic sex scene — Jessica Blau go head to head with the mother of all memoirists — and beloved Baltimore Fishbowl/”Bohemian Rhapsody” columnist — Marion Winik. Don’t despair. Now you can! This Friday night at 7 at the Ivy Bookshop you can see and hear these two witty (and visually pleasing) women writers extraordinaire read excerpts from their latest laughers and ask them to sign your copy. I’m sure they will. Probably they will write something extremely amusing just for you. You might develop a literary crush on one or both. That’s well and good, but don’t reach out and touch them without permission. It’s not that kind of book party. Here’s what will happen.