Credit: NYDailyNews/Getty Images

Apparently, New York Yankee Alex Rodriguez is a homerun in the bedroom.

That's what girlfriend Kate Hudson has been telling close pals, according to the new Us Weekly (on newsstands now).

"They love sex!" a pal tells Us Weekly of the pair who began dating in May. "They talk about it all day. Kate gets graphic talking about his body, even to her parents."

Still, Hudson, 30, is aware of Rodriguez's playboy rep: During his five-year marriage to wife Cynthia, he stepped out with stripper Joslyn Noel Morse; another fling recalls portraits of the slugger as a centaur hanging over his bed.

She won't have to worry about him straying, pals tells Us: "She's with him every second," says a source.

Another adds that Rodriguez, 34, has confided that Hudson means more to him than Madonna, whom he dated after his 2008 split with wife Cynthia, and that "Kate is changing him for the better."

How so?

"He's less of a jerk," jokes the pal. "He's also more free-spirited."

For more on their steamy romance - including how Hudson says they'll be together "forever," their plans for a 2010 move-in and whether wedding bells are in their future - pick up the new Us Weekly today!