Walden attempt to help Jenny actually a date her one-night stand on Two and a Half Men Season 11 Episode 10, while Alan had an interaction in with his transgender girllfriend's ex-wife.
Yes, you read that correctly.
The latter was played by Paula Marshall and the installment also featured Jake sending his dad a Japanese delicacy.
What did this entail? And how did Walden's beach house come alive with somewhat questionable Christmas carol lyrics? Both good questions.
And both can be answered by watching the installment online now: