What Are Best Friends For? More than anything, Summer Patterson wants a baby. What she doesn't want is a husband. Thankfully, her best friend, Ryder McClain, makes the perfect sperm donor. Ryder is loyal, undeniably sexy and the one man she trusts—the only reason she agrees to conceive their baby naturally. When baby-making nights with Summer blaze like the West Texas sun, Ryder feels the heat. He never expected Summer to say yes to sharing his bed. Now he's falling for her—and the prospect of fatherhood—while hiding a secret that could destroy her faith in him forever.