Love Bytes: three must-click sex, dating and relationship links.

Forget meeting the parents; now it's meet the pets! Advice on how to create harmonious relationships with people, pets, and people with pets. [MSNBC]

Trend: hope sex. Can you guess what this is all about? [Huffington Post]

Hope is a physical as well as mental state," says Pepper Schwartz, PhD., professor of sociology at the University of Washington and author of Prime: Adventures and Advice About Sex, Love and the Sensual Years. "When we feel hopeful we produce positive hormones, such as adrenalin and dopamine, that energize and uplift our spirits. Making love is both more desired and more poignant... These are complex, troubled times and we need hope to keep us going in our relationships and in our day-to-day life, so we can repair, progress and even love.

More evidence that chemistry determines who we partner up with: to make healthy babies you need to reproduce with someone whose immune system genes are different from your own so your offspring can fight as many pathogens as possible. You use people's "odorprint" to find a good match. Translation: we like people who smell good, and the way you smell is determined by your biology. [Psychology Today Blogs]