Beyonce and Jay-Z’s 1-year-old daughter, Blue Ivy, has an admirer. Alicia Keys admitted on “The Wendy Williams Show” yesterday that her and husband Swizz Beatz’s 2-year-old son, Egypt, has a cute crush on the tiny tot. “I think Egypt kissed Blue, and I don’t think Jay liked it very much,” she told the talk-show host. “He called my husband and was like, ‘Watch your son.’ ” Sounds like a match made in music-royalty heaven. The “Girl on Fire” singer also discussed the possibility of having more little ones, saying, “I definitely love kids, I do. I . . . would like to at least wait two years.”