Based on bios and some really short clips of the teams:

1) Mark & Bill
2) Toni & Dallas
3) Kelly & Christy
4) Nick & Starr

5) Terence & Sarah
6) Marissa & Brooke
7) Anita & Arthur
8) Aja & Ty
9) Ken & Tina

10) Andrew & Dan
11) Anthony & Stephanie