WATCH: Explosive Trailer for Second Season of 'Teen Mom 2'

Their babies might be growing up, but the girls from Teen Mom 2 seem to be stuck acting like kids in this season 2 preview

Get ready for some more teen mama drama! The second season of Teen Mom 2 is premiering on Dec. 6, at 10 p.m. ET, and MTV has released its trailer full of sneak peeks -- watch here:

Despite lots of excitement, there are sadly few surprises here. Jenell Evans appears to be the same tormented soul from season 1. She's seen fighting with ex-boyfriend Kieffer Delp, getting thrown out of her house by her mother, Barbara, and dealing with the consequences of her brawling and drug charges. Luckily, her toddler son Jayce still seems too young and oblivious to pick up on the conflicts that embroil his mom. 

Even though viewers were privy to Leah Messer and Corey Simm's wedding at the end of the first season, fans already know that their wedded bliss didn't last too long. Parents to adorable twins Aleeah and Alianna split up after only six months, but they are reunited this season when faced with Alianna's health scares together.

Mom to Isaac, Kailyn Lowry is shown dealing with a noncommittal boyfriend -- who rolls his eyes when she asks him, "Do you see us together next Christmas?" -- not to mention other annoyances, like totaling her car and, oh, fessing up to possible infidelity.

Also, the emotional struggle between Chelsea Houska and her on-again-off-again, slacker ex-boyfriend (and daughter Aubree's daddy) Adam Lind seems to still be going on. "How can I like him so much, and he likes me not at all," she says with tears streaming down her face.

Even though it seems like there will be a serious amount of crying and yelling during season 2, viewers can expect some touching moments as well, such as Messer celebrating one of the twins' first steps and Evans promising her little boy that she is going to get help for herself. For the sake of the young mothers, let's hope that there are plenty more moments such as these ahead for them.

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