Geology
Geology
[Two people are doing a geological survey.] Megan: Forget the bedding - we were wrong about the whole valley. Cueball: The spreading is recent.
Megan: See the friction breccia? Cueball: Oh - flow cleavage! Cueball: Deeper in the rift. Megan: Deeper. [An idea pops into Megan's head.]
[The same idea pops into Cueball's head.] Megan: This orogeny Cueball: is driven by a Megan: huge Cueball: thrust fault
[They both drop to the ground in a fit of passion.] Geology: Surprisingly erotic.

Here we have Cueball and Megan discussing geology and the words they use are ripe with puns and double entendres which also have sexual meanings. In the end, they just decide to get it on.
Specifically, the suggestive terms are " bedding ," " spreading ," " friction ," " cleavage ," "deeper in the rift ," " orogeny ," (perhaps a portmanteau of orgy and erogenous ), "huge," and " thrust ."
The technical terms are:
Bedding The division of usually sedimentary rocks into distinct layers. Spreading A process in which two geological regions are moving apart, and potentially allowing for magma to rise between them. Spreading occurs in mid-ocean ridges and in rift valleys . Friction breccia Breccia is a rock made of broken fragments of other rocks. When these fragments can be formed from the rubbing between rocks in a fault, it is a friction breccia. Flow cleavage The crystals in a rock can be aligned by the plastic flow of a rock when it is hot. This causes the rock to split (cleave) along particular planes. Rift A result of spreading is that rocks break, forming vertical faults, and allowing regions to sink and form valleys. Orogeny The process of mountain forming, or a period in which mountains are formed. Thrust fault A sloping crack in the rocks at which one region of rocks is pushing another up.
So it seems that Megan tells Cueball to ignore the layers in the rock, as there is evidence that the valley they are in is a recent rift valley. It was formed in cracking following the lifting up of the surrounding rocks.
The title text is a wordplay, as it could sound like "nice butt". Gneiss is a type of rock made up of different bands, and a butte is an isolated hill with steep sides and a flat top, but smaller than a plateau . However, "butte" is not pronounced like "butt", but as "beaut".
[Two people are doing a geological survey.] Megan: Forget the bedding - we were wrong about the whole valley. Cueball: The spreading is recent.
Megan: See the friction breccia? Cueball: Oh - flow cleavage! Cueball: Deeper in the rift. Megan: Deeper. [An idea pops into Megan's head.]
[The same idea pops into Cueball's head.] Megan: This orogeny Cueball: is driven by a Megan: huge Cueball: thrust fault
[They both drop to the ground in a fit of passion.] Geology: Surprisingly erotic.
