What are some fun/kinky things to do with your partner?

Golden enema

Take a sensual shower together. Rub your soapy body all over theirs.

Sex club - watch, be watched or fully participate

Why do I sweat a great deal while exercising the same on some days and not so much on others?

Temporary body paint

TENS unit - electro shock

Open her up with a speculum and see what's inside. Give her a mirror or take pictures for her.

What are the psychological reasons behind an extreme obsession with another human being?

A sexy walk in the park at night, when nobody else is around

Candle wax play

“Rescue” sex - partner lets go and is about to do something dangerous but hold them back at the last second. This takes trust.

What is a good comeback for when someone calls you flat?

Meet other couples through a Lifestyle website.

Fall asleep spooned up, coupled. Can you stay that way when you wake up?

New lingerie

What would happen if the Soviet Union had simply annexed Manchuria after World War 2 or kept it independent as a puppet state allied them and separate from China as China was too weak too oppose it anyway?

Sex swing

Sex on the dining room table

Titty fuck

What was the worst decision you ever did?

69

Long (hour or more) marathons

Bite hard on a tough part of you partner's body, like their heel without breaking the skin. Endorphin rush

Is it wrong of me to feel uncomfortable that my friend thinks my brother is hot?

Sex in public

Try different sex positions - Read and go through the Kama Sutra.

Sex with good friends but not lovers. Keeping the balance is tricky.

This T-Mobile free phone offer may be its hottest deal yet - TheStreet

Hot tubs

Scented massage oils

Hair play. (Cowgirl, brushing her long hair over his skin and face)

Why do trans people get so deeply offended when a stranger misgenders them, especially when it's a first encounter? I've been socially transitioned for 4 years and it just feels like a waste of energy to be so hurt by it.

Food play (sploshing) - including washing her off in the kitchen sink.

Anal play

Sex in a pool

How the Brain Actively Removes Unwanted Memories - Neuroscience News

Mutual masturbation

Induce squirting with the right techniques.

Play sexy truth or dare card games.

What does K mean in Vietnamese?

Find porn or erotica that you both like.

Short (5 minutes or less) quickies

Sex on the beach

Mutual massage which may or may not get erotic

Sex on a hard floor or rug rather than a soft bed

Forced hydration. Drink water during sex until you lose bladder control.

Butt slapping as hard as they can take and enjoy.

Couples massage at a spa

Golden shower

Pregnancy play. Ask a woman who's stopped menstruating but wishes she could have more kids whether she wants a boy or a girl just before cumming inside her.

Snowball - cum inside her vagina, go down on her and suck it out, and then kiss her and shove your own spunk in her mouth.

Long distance hot video chat with mutual masturbation.

Write your own sexy truth or dare card games.

Canibalism - eat a tiny piece of each other - typically a nip of you ass cheek. This may leave a small permanent mark, but it was in love.

Outdoor sex under the real stars

Prostate massage.

Mood lighting. Try a sega Homestar planetarium projector

Take a sexy shower together. Soap makes pretty good anal lube and clean up is easy.

Here is another list

Sex with other couples (or at least near them)

Nude co-ed sauna. (Russian banya)