This will no doubt mark me as an unreconstructed dinosaur, but somehow seeing the words “cleavage,” “bare mid-riff,” and “Marine” in the same sentence just doesn’t sit right...unless the sentence reads, “The chiseled features of the normally stoic Marine broke into an unwonted smile when he saw the comely lass sashaying down the beach clad in a cleavage- and mid-riff-revealing, yet modest, swimsuit.”
A- True. However, for an A+ it should read... 
“Bender's normally stoic chiseled features broke into an unwonted smile when he saw Kristin Wiig sashaying down the beach clad in a cleavage- and mid-riff-revealing, yet modest, swimsuit.”
BTW What did she say... 
when you told her about my fire heroics?