▁encounter ▁his ▁female ▁counter part , ▁is ▁shock ed ▁to ▁find ▁it ▁to ▁be ▁actually ▁a ▁male ▁dog - like ▁hum ano id ▁named ▁Dog ▁( M att hew ▁Dev itt ). ▁ ▁Hol ly ▁and ▁H illy ▁reve al ▁that ▁they ▁need ▁a ▁day ▁to ▁repair ▁the ▁Hop ▁Drive , ▁leaving ▁the ▁two ▁groups ▁to ▁decide ▁to ▁social ise ▁in ▁the ▁disco ▁for ▁the ▁night . ▁L ister ▁and ▁R immer ▁are ▁soon ▁put ▁off ▁by ▁their ▁counter parts ▁– ▁the ▁former ▁critic ising ▁Deb ▁on ▁her ▁qual ities ▁despite ▁sharing ▁them ▁himself , ▁and ▁the ▁latter ▁resist ing ▁Ar l ene ' s ▁over b ear ing ▁sexual ▁adv ances ▁– ▁while ▁Cat ▁and ▁Dog ▁disag ree ▁on ▁dance ▁techniques . ▁Despite ▁this , ▁L ister ▁has ▁sex ▁with ▁Deb , ▁but ▁is ▁shock ed ▁in ▁the ▁morning ▁when ▁Ar l ene ▁points ▁out ▁that ▁men ▁in ▁their ▁universe ▁get ▁pre gn ant , ▁rather ▁than ▁women . ▁After ▁Hol ly ▁and ▁H illy ▁confirm ▁this , ▁L ister ▁becomes ▁hor r ified ▁that ▁this ▁universe ' s ▁rules ▁will ▁ensure ▁this . ▁After ▁he , ▁R immer , ▁Cat ▁and ▁Hol ly ▁return ▁to ▁their ▁Red ▁D war f ▁and ▁universe , ▁L ister ▁conduct s ▁a ▁pre gn ancy ▁test . ▁As ▁he ▁wa its ▁for ▁the ▁results , ▁Hol ly ▁spec ul ates ▁that ▁this ▁might ▁be ▁the ▁answer ▁to ▁how ▁he ▁saw ▁a ▁" f uture ▁echo " ▁of ▁himself ▁with ▁tw in ▁boys , ▁to ▁which