Sean Kingston is leaning on family and friends after being released from jail in his fraud case … ’cause his ma paid him a visit at his Florida home, and she brought Safaree along.

The “Beautiful Girls” singer couldn’t be bothered to put on pants to welcome his guests Wednesday … greeting them outside his Weston estate in nothing but a white tee and some black biker shorts. Indeed … the dude looks totally relaxed, despite what’s going on.

Sean’s had a pretty busy day … before the in-home visit, he got out of jail, which included conditions. He was released on a $100k bond after surrendering his passport and any firearms.

Sean hosted his mom, Janice Turner, and Safaree at the same home he has on the line in his fraud case … as we told you, he had to use his mortgage as collateral to secure his bond — and right after he was sprung, it looks like he went home to enjoy the crib.

Lots to talk about for Sean and co., we’re sure … remember, his mother was also arrested and charged in the same case.

As we first told you … Sean got back to Florida over the weekend after being extradited from California. The Broward County Sheriff is now trying to foot the bill for the cross-country transport … pegging the total cost at a little over $5k.

Remember … Sean has been in legal hot water ever since cops raided his Florida home … with prosecutors claiming Sean and his mom swindled several businesses out of hundreds of thousands of dollars.