In Heat, book 2 : Mating Call
Felicity E. Heaton2010

The English winter weather has no chance of cooling Kim down when her dreams of Erik return, and this time they're hotter than ever! Having spent the past two years waiting to be in heat again so she can mate with her black panther shape-shifter lover, Erik Blackwell, Kim is excited about the prospect that she's ready at last. But there's one thing that she isn't ready for... The handsome white tiger shape-shifter that walks into their visions and then into their life, proclaiming himself to be her potential mate too! With two shape-shifters hearing her call, Kim doesn't know what to do. All she wants is to be Erik's, but she has no control over the visions they share and she finds herself starting to enjoy the intensely sensual and sexual things she and her two would-be lovers do in them. Erik's jealousy of the newcomer is only made worse by the fact that the man turns out to be the crown prince of Denmark, Prince Kristian, and he's as intent on winning Kim as Erik is on keeping her for himself. Torn between two lovers, will Kim have the strength to ignore Kristian's heat and her attraction to him? Unable to stop herself from joining in the carnal pleasures in their visions, will she be able to resist the lure of Kristian in real life? Will Erik believe everything that happens or will he see past the lies to the truth and fight for the woman he loves?