SheReadsALot says:
"There's nothing like great dirty talk. And when it's paired with great D/s? It's like there's a jackpot to be read. And "Sarge", the first in the F.I.S.T.S. series, definitely has that in spades. In less than sixty pages, it gets the job done to portray a burgeoning relationship between two space marines who are fighting a losing battle on an alien planet."