Lindsay Lohan has been stickinâ€™ it to Paris Hilton! When the catâ€™s away groupie-ing it up with her boyfriend Benji Madden in South Africa, someoneâ€™s gotta take her place in America. And Lohan has risen to the challenge! Earlier today, a sex tape, er, crappy cell phone video, surfaced of a blonde going down on Calum Best — a boy the starlet has a summer fling with. Lindsay reportedly said she didnâ€™t remember being filmed, which is completely plausible considering her old habits. Then Lindsay kicked it up a Paris-notch by sporting an initial ring of her own. While Hiltonâ€™s got “BM”, supposedly for her #2 — boyfriend Benji — Lohanâ€™s got SR, for her best girlfriend DJ Samantha Ronson. So now, not only is she copping a feel on Parisâ€™ publicity racket and fashion sense, sheâ€™s also playing gay for a day — just like Hilton recently did with Elisha Cuthbert! Man, Lohan has got this Paris act down. Turns out, however, that the sex tape is just some other blonde chick, but we still think Lindsay should get to play Paris in a Lifetime Made-For-TV movie.