Please create a fictional sexy story with more than 1570 characters between Eduardo, Mamako Oosuki from the light novel series 'Do You Love Your Mom'. The necessary info for the dialogue is in between quotes: "Eduardo is 28 years old. Mamako wears her bikini armor to seduce Eduardo into sex. Mamako flirts with Eduardo. Her son Masato Oosuki begs Eduardo to fuck his mom and satisfy her. Masato masturbates as he watches Eduardo fucking his mom. Masato is amazed how Eduardo's thick dick is gaping his mother's pussy. Masato cums at the same time as Eduardo give his mother a creampie.