Twins

Hi dear gleeks !

I'm looking for stories where Kurt and/or Blaine has a twin. It can be twincest or not, i don't mind either way, I love both. All pairings/threesomes/foursomes accepted (as shown in the tags I chose). But please no "good twin/evil twin" stories. It's really not my thing.
Please only rec completed stories. I get frustrated when WIPs never get an end.

All lengths and all ratings are welcome.

Thanks in advance (and as usual, sorry about my icon not being about Glee at all :) )

Vanessa