The "Teen Mom 2" cast from left: Jenelle Evans, Chelsea Houska,Kailyn Lowry, Leah Messer The cast of "Teen Mom OG," the original spin-off to the hit MTV reality series "16 & Pregnant," are kind of getting blocked by the "Teen Mom 2" cast. First, we learned that Amber Portwood's sketchy fiance, Matt had hit on TMOG co-star Farrah Abraham and TM2 star Jenelle Evans before settling for Portwood. That caused their impending wedding to be put on hold. Now, Evans is stealing the spotlight once again as she and boyfriend David Eason have officially announced that they are expecting. The mom to Jace, 6 and Kaiser, 2 made the announcement via social media, having this to say: "Time to introduce the world to our baby girl soon, Ensley Jolie Eason. She will be arriving Jan. 28th. We couldn't be any happier!"