Garrus: Shepard, I guess this is...
Shepard: Just like old times?
Garrus: Might be the last chance we get to say that
Shepard: You think we're going to lose?
Garrus: No, I think we're about to kick the Reapers back into whatever black hole they crawled out of. Then we're going to retire someplace warm and tropical and live off the royalties from the vids. Maybe even find out what a human-turian baby looks like
Shepard: I'm game Though I think adoption's a better idea- biology may not cooperate
Garrus: Hmm...I suppose there will be a lot of little krogan around soon

A WIP sketch I'm doing of my Shepard finally getting married to Garrus, with their adopted son, Thane. This will eventually get all nice and pained and polished eventually. I had the perfect destroy ending so my headcannon here is legitimate, lol. Liara is back at the villiage tending she and Shep's daughter, Benezia. They all three retired to the same planet so Shepard could raise both of her children. (aka, romanced liara ME1, Romanced Garrus ME2, rekindled with Liara in LotSB, and locked in Garrus in ME3)