Okay, I think I might be able to help.
“Get ready for 24/7 sex.”
This is addressed to women in general.
“The actual act”
That would be sex.
“might not happen”
Sex might not be what’s going on right this second, but…
“but the man part of this world has his brain zeroed in on it.”
All the men are constantly thinking of it.
“Apparently, only one thing at a time can be thought of”
Again, all men can think of is sex and only sex. They cannot do this whilst thinking of anything else simultaneously.
“by this less than perfect human specimen”
Men.
"and is always guided by his protruding conduit of “love”
Penis.
“what they think is the biggest in the world”
How well-endowed they are over all others.
“and God’s gift to women.”
How it’s divinely special for women.
“The problem with thinking,”
The issue with believing the above.
“in this case, men,”
Addressing the fellows here again.
Is that the brain is located in that ugly protruding conduit of “love”,"
Is that their brain is located in their penis. Ow.
“that only serves to please themselves:p:p:D”
And that their penis is only used to make their owners happy. 
“Remember it started with you.”
Um, no idea. Little assist, please?
That sound about right?
