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

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

Sex on the beach

Long distance hot video chat with mutual masturbation.

Has a conversation with someone who holds opposing political views ever caused you to change your own beliefs?

Golden shower

Golden enema

Short (5 minutes or less) quickies

What's the most trivial thing that ever made you go to the doctor?

Anal play

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

Play sexy truth or dare card games.

'JC, Take the Wheel!' Kevin Smith Looks Back on His Hilariously Heretical 'Dogma' 25 Years Later - Rolling Stone

Mood lighting. Try a sega Homestar planetarium projector

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

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

How do I build rapport with anybody?

Sex in public

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

Sex on the dining room table

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TENS unit - electro shock

Nude co-ed sauna. (Russian banya)

Sex in a pool

Scientists Just Found an Ingredient for Life in a Newborn Planet System - The Daily Galaxy

Candle wax play

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

Sex with other couples (or at least near them)

Why do girls in Indian top colleges wear shorts?

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

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

Hot tubs

What can you do if someone makes a false accusation against you?

New lingerie

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

Mutual massage which may or may not get erotic

How come Jesus died on Friday and rose on Sunday? That's not 3 days and three nights.

Scented massage oils

Butt slapping as hard as they can take and enjoy.

Induce squirting with the right techniques.

Does eating bread before bed make you fat? If so, why?

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Sex swing

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

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

Here is another list

Meet other couples through a Lifestyle website.

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

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.

Find porn or erotica that you both like.

Prostate massage.

Long (hour or more) marathons

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.

Titty fuck

Couples massage at a spa

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.

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

Sex club - watch, be watched or fully participate

Write your own sexy truth or dare card games.

Temporary body paint

Outdoor sex under the real stars

Mutual masturbation