Answer:
And in this flea our two bloods mingled be;
And pampered swells with one blood made of two;
Step-by-step explanation:
John Donne's poem "The Flea" is a comical representation of how a flea 'unites' two lovers by sucking on their blood one after the other. And in using the flea, the speaker uses this 'union' as proof that they are united and so can indulge in the act of physically consummating their “union/marriage”..
The two lines of poetry that suggest the physical union of the lovers is in the 4th and 8th lines.
"And in this flea our two bloods mingled be;" and "And pampered swells with one blood made of two."