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

New lingerie

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

Outdoor sex under the real stars

“Very Odd” New Sea Monster Identified After Decades of Mystery - SciTechDaily

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

Sex on the beach

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

Are today’s baseball pitchers faster than a few years ago, or is it that radar guns have improved and get the pitch speed as it is released rather than as it reaches the plate?

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.

69

Research roundup: Ping-pong bots, the genetic key for ginger cats, and more - Ars Technica

Hot tubs

Meet other couples through a Lifestyle website.

Prostate massage.

"Cocaine sharks" found off the coast of Brazil - strange but true tale of ocean pollution consequences - Earth.com

Here is another list

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

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

How to reduce your risk of melanoma and other skin cancers - KSLTV.com

Write your own sexy truth or dare card games.

Play sexy truth or dare card games.

Mutual masturbation

What misfortune led to an important discovery?

Find porn or erotica that you both like.

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

Sex club - watch, be watched or fully participate

Origami structures unfold into seamless surfaces for deployable applications - Phys.org

TENS unit - electro shock

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

Sex on the dining room table

Walkoff caps ‘unreal 24 hours’ for Mariners’ Cole Young - Seattle Sports

Sex in a pool

Mutual massage which may or may not get erotic

Mood lighting. Try a sega Homestar planetarium projector

Why were the Japanese soldiers in WW II so hesitant to surrender in battle?

Anal play

Long (hour or more) marathons

Golden shower

How I’ll Remember Edmund White - Vulture

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

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

Golden enema

Switch 2 Tears Of The Kingdom Confirms Link Respects Women - Kotaku

Short (5 minutes or less) quickies

Candle wax play

Titty fuck

Where is best free porn?

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

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

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.

Asian Shares Have Tepid Start Before US Jobs Data: Markets Wrap - Bloomberg

Temporary body paint

Induce squirting with the right techniques.

Sex with other couples (or at least near them)

What is a fun psychological trick to try on someone?

Butt slapping as hard as they can take and enjoy.

Sex in public

Sex swing

Measles case confirmed in Allegan County, officials provide locations of exposure - WWMT

Scented massage oils

Long distance hot video chat with mutual masturbation.

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

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.

Nude co-ed sauna. (Russian banya)

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