Samantha Ronson and Lindsay Lohan are becoming more public that they are in fact dating and very serious about each other.

Sam posted the steamy photo (see above) of her making out with the 22-year old Lohan on her MySpace page.

Ronson also bought Lindsay a $22,000 ring for her 22nd birthday.  Some entertainment writers are claiming that the ring is in fact an engagement ring (that is legal now in Cali ya know).

Nice kiss by the way! I give it a 9 out of 10.   And the countdown until the sex tape starts now!

photo: Sam’s MySpace