It is well documented that the levels of Oxytocin spike during sex. What are some other events/activites that maybe not as intense (or expensive) as good sex with a beautiful partner(s) but can still cause a spike in Oxytocin levels.

...........I would replace number five with a St John suit, or a pair of Manolo's.  If I had to choose a destination, it would be backcountry skiing in the Columbia Bowl on Teton Pass!  

For me:

1) Playing a piece of Romantic music
 2) Admiring a piece of contemporary sculpture
 3) Sprinting as fast as possible out of a starting block
 4) Winning blackjack by NOT gambling
 5) An epiphany towards the nature of Reality  
 6) Peeing in the shower

Yelling out an extra rep may have been my orgasmic release…not quite.  Pull ups, especially, make me want to cum.

I still pause under the shower head sometimes and feel such a deep appreciation for clean running water. It gives me a feeling that reminds me in many ways I've already won multiple life lotteries and that makes me feel purposeful. Water in general makes me happy. drinking, swimming, viewing, and listening to water.

I have no idea how to compare Oxytocin levels, but I think these experiences cannot be compared in intensity, anymore than apples and oranges.  For me, NOTHING compares with a mind-blowing sexual experience,and I am not a sybarite, but sometimes the others might even be preferable in certain circumstances.  Of the things listed by 808 that I have experienced, I would list 4, 2, 1, and 3 in that order.  The mountaintop experience (I'm talking about Himalayas and Andean high base camps but not summits) stands with fantastic sex as a mindblower, but the mountaintop is more rare and for that reason perhaps more to be treasured.

Having lived in Africa for many years, clean cold or very hot water after a long dusty drive - nothing like it except for exceptional sex.  I totally get it.

exceptional sex is like finding a Yettee. Rare and exciting! And of course ....Dangerous.  

1. Winning a big pot through a bluff in poker  
2. Blasting past another cyclist while on my road bike  
3. Scoring a goal in ice hockey or hitting a great winning shot in tennis
4. Going sailing on clear, sunny day (of course, having sex while sailing is even better)

The perfectly struck golf shot.

A 'Hole-in One'

I am still waiting for my first Ace, but I've heard it's a fantastic feeling.

I'd settle for a perfectly struck long iron to within 4 feet of the hole!