Justin Timberlake and Andy Samberg with Susan Sarandon and Patricia Clarkson

Justin Timberlake and Andy Samberg have come up with another gift that just keeps on giving.

Having previously delivered the Emmy-winning Saturday Night Live digital short "D**k In a Box," the singer host and funnyman collaborated once again for this weekend's show.

In "Motherlover," JT and Samberg's hirsute alter egos decide that, having forgotten to shop for Mother's Day, they'll "take care" of each other's moms. Yes, in that way.

Suffice it to say, this viral clip contains barely bleeped obscenities and mature subject matter.

Perhaps the best part? Playing said about-to-get-lucky moms are Susan Sarandon and Patricia Clarkson.

In his encore as guest host, Timberlake also brought back The Barry Gibb Talk Show (with a visiting Jimmy Fallon), reprised his singing street pitchman, and performed with musical guest Ciara (who sure knows how to do a split.)