S/He pushed.

S/He wiggled. S/He pushed more.  

It didn't feel like they were getting anywhere. They kept trying though, each of them getting more and more excited. Then all of a sudden, a gigantic head popped inside them.

"I remember gasping and clawing at Vin'nyla's shoulders. I... I tensed up." 

S/He falls off having received an electric shock.

Wrong thing to do. It made things worse. S/He felt them straining and s/he waited patiently. 

That when s/he relaxed, it would start to feel good. S/He was totally right, of course.

S/He paused and had another sip of liquid courage. 

S/He was curious where it would all lead.