JENNIFER Lopez is smitten with boy toy Casper Smart!

According to Us Weekly magazine, the singer — who last year split from husband Marc Anthony — has been telling friends she wants to marry her boyfriend of six months.

 “She’s telling friends she wants to marry Casper,” dished one insider.  “She’s certain she wants to be with Casper forever.

“He provides what she hasn’t had in years. He’s very supportive and devoted. “He exists only for her. Marc controlled her, and now she’s in control.”             –SS