The Baby Proposal / The Pregnancy Project - 2 in 1 Desire book (Mills and Boons)

The Baby Proposal by Andrea Laurence
When Lana Hale asks hotel tycoon Kal Bishop to marry her, he can't let his best friend down!  To keep her sister's baby out of the foster care system, Lana needs Kal to pose as her husband.  Soon his luxury Hawaiian resort sets the stage for an unexpectedly passionate honeymoon... Before they know it, playing the part of lovers turns into the real thing.  And once the need for their ruse ends, Kal faces losing a wife he didn't even know he wanted. Will the reluctant husband take the ultimate risk and make a proposal of his own?

The Pregnancy Project by Kat Cantrell
On TV, Dr Dante Gates teaches the science of attraction.  Now this wealthy genius is using his expertise on best friend, Harper Livingston.   His theory: one kiss will extinguish that distracting spark between them.  Reality proves hotter than any fantasy... until he learns Harper's expecting...

She chose pregnancy by sperm donor before her best friend became Dr Sexy. Now, if she wants all he can give, she has to stay emotionally detached- or risk losing his friendship and her cosmetics company.  But as she surrenders to his masterful seduction, she admits: some things are worth the risk...