Ryan Lochte is off the market.  The Olympic swimmer got engaged to his Playboy model girlfriend Kayla Rae Reid.

Lochte proposed to Reid with a HUGE diamond in the Malibu Canyon at sunset.

Both Ryan and Kayla posted a picture from the special evening on their Instagram accounts.  The two have been dating since March.  They got serious really fast as Lochte introduced Reid to his parents in April.

Photos in the gallery above.

ShayAux: Twitter || Instagram